they sat down together for an interview with "60 minutes." and we'll have some of that for you in 30 minutes. >>> for much of the country this morning, it is cold. the national weather service is warning of bitterly cold conditions. this weekend across much of the northeast, the mid-atlantic, and the midwest, several inches of snow fell yesterday on parts of the ohio valley, then pushed through to the east coast. the system brought an arctic blast that forecasters say could be deadly. warming centers are open now in pennsylvania, new york, and new jersey. some superstorm sandy victims there still, believe it or not, don't have basic utilities to keep warm. and the tennessee valley and the carolinas are also on ice. freezing rain is blamed for more than 200 wrecks around charlotte and the airport there had to cancel 100 flights. here's how you can tell it's really, really cold. a polar bear plunge. where people take a plunge in the river for fun, as they say. one was called off in new jersey because organizers said the single digit windchill m